package com.wjf.concurrency.example.atomic;

import com.wjf.concurrency.annoations.ThreadSafe;
import lombok.extern.slf4j.Slf4j;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Semaphore;
import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.atomic.LongAdder;

@Slf4j
@ThreadSafe
public class AtomicExample4 {
   private static AtomicReference<Integer> count=new AtomicReference<>(0);

    public static void main(String[] args) {
        count.compareAndSet(0,2); // count =2
        count.compareAndSet(0,1);// no
        count.compareAndSet(1,3);// no
        count.compareAndSet(2,4);// count =4
        count.compareAndSet(3,5);// no
        log.info("count:{}",count); // count =4
    }
}
